Home / 220,170,131.30-330,255,196.95-66,815,941.70

Finding the Fourth Proportional to 220,170,131.30, 330,255,196.95 and 66,815,941.70

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Solution

The fourth proportional to 220,170,131.30, 330,255,196.95 and 66,815,941.70 is: 100,223,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,170,131.30 : 330,255,196.95 = 66,815,941.70 : x
  2. Step 2: Convert to fraction form
    220,170,131.30/330,255,196.95 = 66,815,941.70/x
  3. Step 3: Cross multiply
    220,170,131.30x = 330,255,196.95 × 66,815,941.70
  4. Step 4: Simplify right side
    220,170,131.30x = 22,066,311,985,533,220
  5. Step 5: Solve for x
    x = 22,066,311,985,533,220/220,170,131.30
  6. Step 6: Final answer
    x = 100,223,912.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.